The duration of pregnancy normally is ______ weeks.

What will be an ideal response?


38-42

Biology & Microbiology

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Deletions are most useful for gene mapping

A) when you have a mutant allele of a gene that is recessive to normal alleles and amorphic. B) when you have a mutant allele of a gene that is dominant to wild-type alleles. C) if you have a mutant allele of a gene that results in no detectable mutant phenotype when homozygous. D) if you have a gain-of-function mutant allele of a gene.

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__________ are tetrapods that live on land but

typically return to water to reproduce. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The total resources a population consumes and the wastes it produces is its ____

a. ecological footprint b. vital capacity c. carrying capacity d. nonrenewable resources e. limiting factor

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Systematics is:

a. the study of naming and assigning organisms. b. the evolutionary history of a specific organismal group. c. the study of the diversity of life to understand its evolutionary history. d. the practice of arranging organisms into a hierarchy. e. All of the above are correct.

Biology & Microbiology